<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="/webjars/bootstrap/4.3.1/css/bootstrap.min.css"/>
</head>
<body>
    <h1>欢迎学习SpringBoot！</h1>
</body>
</html>